Thromboelastometry assessment of hemostatic properties in various murine models with coagulopathy and the effect of factor VIII therapeutics
| Autor: | Hartmut Weiler, Juan Fang, Qizhen Shi, Robert R. Montgomery, David A. Wilcox, Jocelyn A. Schroeder, Erin A Kuether, Weiqing Jing |
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| Rok vydání: | 2021 |
| Předmět: |
Pharmacology
Hemostatics Article Mice Coagulopathy Animals Humans Medicine Platelet Whole blood Hemostasis Factor VIII biology business.industry Factor V Hematology medicine.disease Thrombelastography Mice Inbred C57BL Disease Models Animal Thromboelastometry Coagulation Clotting time biology.protein business |
| Zdroj: | J Thromb Haemost |
| ISSN: | 1538-7836 |
| DOI: | 10.1111/jth.15456 |
| Popis: | BACKGROUND: Rotational thromboelastometry (ROTEM) has been commonly used to assess the viscoelastic properties of the blood clotting process in the clinic for patients with a hemostatic or prothrombotic disorder. OBJECTIVE: To evaluate the capability of ROTEM in assessing hemostatic properties in whole blood from various mouse models with genetic bleeding or clotting disease and the effect of factor VIII (FVIII) therapeutics in FVIII(null) mice. METHODS: Mice with a genetic deficiency in either a coagulation factor or a platelet glycoprotein were used in this study. The properties of platelet- or plasma-FVIII were also assessed. Citrated blood from mice was recalcified and used for ROTEM analysis. RESULTS: We found that blood collected from the vena cava could generate reliable results from ROTEM analysis, but not blood collected from the tail vein, retro-orbital plexus, or submandibular vein. Age and sex did not significantly affect the hemostatic properties determined by ROTEM analysis. Clotting time (CT) and clot formation time (CFT) were significantly prolonged in FVIII(null) (5- and 9-fold, respectively) and FIX(null) (4- and 5.7-fold, respectively) mice compared to wild-type (WT)-C57BL/6J mice. Platelet glycoprotein (GP)IIIa(null) mice had significantly prolonged CFT (8.4-fold) compared to WT-C57BL/6J mice. CT and CFT in factor V (FV) Leiden mice were significantly shortened with an increased α-angle compared to WT-C57BL/6J mice. Using ROTEM analysis, we showed that FVIII expressed in platelets or infused into whole blood restored hemostasis of FVIII(null) mice in a dose-dependent manner. CONCLUSION: ROTEM is a reliable and sensitive assay for assessing therapeutics on hemostatic properties in mouse models with a bleeding or clotting disorder. |
| Databáze: | OpenAIRE |
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